Give a detailed account of the Himalayan
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Himalayas are the young fold mountain system formed by the folding of sedimentary rocks accumulated in the geosyncline called Tethys.They form an unstable zone and have deep valleys, high peaks and fast flowing rivers. They stretch from Indus to Brahmaputra, with a length of 2400 km.
1. Great Himalayas or HIMADRI
They are the most continuous upper layer of the Himalayas with an average altitude of 6000 m containing all the prominent Himalayan peaks. This range is snow bound all year round and a number of rivers originate from the glaciers in this range.
2. Lesser Himalayas or HIMACHAL
They are the second layer of the Himalayas with an average altitude of 3700-4500 m and width of 50 km. Major ranges are Pir Panjal, Dhaula Dhar and Mahabharat.
3. Outer most Himalayas or SHIWALIKS
Average width of 10-50 km and average altitude of 900-1100 m.
1. Great Himalayas or HIMADRI
They are the most continuous upper layer of the Himalayas with an average altitude of 6000 m containing all the prominent Himalayan peaks. This range is snow bound all year round and a number of rivers originate from the glaciers in this range.
2. Lesser Himalayas or HIMACHAL
They are the second layer of the Himalayas with an average altitude of 3700-4500 m and width of 50 km. Major ranges are Pir Panjal, Dhaula Dhar and Mahabharat.
3. Outer most Himalayas or SHIWALIKS
Average width of 10-50 km and average altitude of 900-1100 m.
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Answer:
Oldest landmass Gondwanaland Gondwanaland included India Australia south America South Africa and Antarctica as one single landmass
conventional current toss the earth’s crust into number of pieces
led to the drifting of the indo Australian plate
it northward drift led to the Collision with a much larger Eurasian plate
this in turn lead to the folding of the sedimentary rock found in the Tethys sea and led to the formation of mountain system of Western Asia and Himalayas
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